James T. Aldrich Barnwell SC, Descendant

I am doing research on James T. Aldrich of Barnwell, SC.He married Isabel Coroneus Patterson about 1840.He had 5 or 7 children.He and his wife were living at the time of the 1870 Census.Isabel Coroneus Patterson is the daughter of Angus Patterson and Isabel Coroneus Trotti.I am bringing one of the Trotti Genealogies up to date and trying to find the descendants of James T and Isabel C. Aldrich.